Here is the question I asked during the chat and his reply.
If this is the case, it looks like he is the leading candidate to be the 10th former G-Stro to make it to the majors since the franchise moved here in 2004.
appyastro: Do you think Jordan Lyles will spend more time in Triple-A or Houston this year?
Mayo: My gut says he starts the year in Triple-A (he didn't pitch there all that much last year), but he finishes it in the Astros' rotation. If you don't see him by the All-Star break, I'd be surprised.